baber/WOPTO huggingface dataset:
Patent GB-466112-A (GB)
Title: Improvements in or relating to bleaching by hydrogen peroxide
IPC: D06L4/10
Filed: 1935-11-18
Abstract: The decomposition of acidic solutions of hydrogen peroxide used in the bleaching of wool and the like is retarded by withdrawing the peroxide solution from the bleaching vat and filtering it through absorbent cellulosic material.  The filtered solution is then returned to the vat free from catalytic impurities such as the metals iron, copper, nickel, and manganese, and also metallic oxides which are a primary cause of the decomposition of such bleaching solutions. Cellulosic materials in any form are suitable such as artificial silks generally, notably regenerated cellulose, viscose, and cellulose acetate.  The preferred material is that sold under the trade name of Kimpak which is substantially pure cellulose.  The process of the invention is applicable to baths having a pH range of 2,5 to 6,0, although the preferred values lie between 3,5 and 5,0. The preferred form of the process is to filter the entire volume of bleaching solution at such a rate that all the solution passes the filter about once in every one to three hours.  Alternatively a portion of the solution may be byepassed through a filter and returned to the bath, such operations being carried out continuously so that the bath is continuously being filtered.  The stability of the bleaching bath may also be increased by the use of stabilizers as an additional step to the filtration process.  Suitable stabilizers are p-aminobenzoic acid and acetanilide which are used in concentrations of from 0,01 per cent to 0,03 per cent. In examples of the treatment of acid solutions of hydrogen peroxide employed in the bleaching of wool, (1) a 2,0 volume hydrogen peroxide solution of 3,5 pH filtered through a Kimpak cellulose filter showed a volume loss per month of 4,2 as compared with a 10,6 loss of an untreated solution; (2) a 2,0 volume hydrogen peroxide solution of 5,0 pH filtered through a Kimpak cellulose filter showed a 3,8 volume loss per month as compared with a 22,1 loss of an untreated solution; (3) 2,0 volume hydrogen peroxide solutions of pH 3,5 and 5,0 respectively were subdivided and portions thereof treated with acetanilide as a stabilizer in varying amounts.  Each portion was divided into two parts, one of which was filtered through a Kimpak filter and one was not.  A table given shows the results, from which it is clear that an increase in the amount of stabilizer and filtration both increase the stability of the solution in a 16 hour test.  (4) The procedure of example (3) is followed using p-amino-benzoic acid as the stabilizer with similar results.
Patent GB-1513309-A (GB)
Title: Envelope assemblies
IPC: B65D27/06
Filed: 1975-07-31
Abstract: 1513309 Envelope assemblies MOORE BUSINESS FORMS LTD 31 July 1975 31985/75 Heading B6A Each sealed mailing envelope in a web assembly contains an open return envelope defined by a U-shaped line 26 of adhesive on interconnected upper and lower panels 19, 21. One panel has a portion 25 separable along a line of marking 28 and attached at 29 to the mailing envelope. The latter is formed from panels 14, 15, adhered together at their ends at 31, 33, Figs. 5 and 6, and at their sides at 16, 17, Fig. 7. The ends of panels 19, 21 are held in the adhesive at 31 and 33, and lines of weakening 32, 34 adjacent these ends permit the return envelope to be separated from the mailing envelope and from a pull tab 35 defined by lines 36. The separable portion 25 is left in the mailing envelope when the return envelope is removed therefrom, a glued flap 23 being provided for subsequent sealing of the return envelope.
Patent GB-1088089-A (GB)
Title: Improvements in or relating to oxygen-operated burners for gases
IPC: F23D14/74
Filed: 1965-07-27
Abstract: 1,088,089. Gas burners. PHILIPS GLOEILAMPENFABRIEKEN N.V. July 27, 1965 [July 30, 1964], No. 32011/65. Heading F4T. A gas burner has a flame nozzle 10 supplied with oxygen and a gas having a low speed of combustion, e.g. natural gas, through lines 2 and 4 respectively, and is surrounded by a second nozzle 7 projecting beyond its outlet end, the annular space 21 between the nozzles being supplied with an incombustible gas, e.g. oxygen or air, at above atmospheric pressure which forms a protective envelope around the foot of the flame 17. Oxygen supplied to the space 21 may be obtained from line 2 and controlled by a screw 15. The gas flow to the foot of the flame should contain an amount of oxygen per unit time which is from 5 to 20% of the total amount of oxygen supplied per unit time. In Figs. 2 and 3 (not shown), a multiple burner head has its flame nozzles and secondary nozzles supplied from two common supply lines 25 and 27, respectively.
Patent GB-849687-A (GB)
Title: Ingot mold
Inventor: JR HOWARD OSCAR BEAVER
IPC: B22D7/06
Filed: 1957-10-14
Abstract: 849,687. Ingot moulds. CARPENTER STEEL CO. Oct. 14, 1957, No. 32017/57. Class 83 (1). In an ingot-mould, the axial length B of the mould cavity is from 2.6 to 2 times the mould width A at its upper end, the crosssectional thickness of the mould wall is such that the ratio of the area of the top-end-wall to the area of the top end of the cavity is from 0.5 to 0.7, and the ratio of the area of the bottom-end-wall to the area of the bottom end of the cavity is from 2.4 to 2.7. The cavity tapers inwards so that the decrease in the diameter of the cross-section of the cavity, from top to bottom, per foot along the axis B, is from 0.6 to 1 inch.
Patent GB-175718-A (GB)
Title: An improved connector for air pumps
IPC: B60C29/06
Filed: 1920-11-16
Abstract: 175,718. Davies, T. M. Nov. 15,1920. Stuffing - box joints; couplings, disconnectible. -Relates to pump-connectors of the kind comprising a rubber sleeve which is adapted to fit freely over the nozzle of a tyre valve, and can then be tightened thereon by longitudinal pressure on the sleeve exerted by a screw or the like. According to the invention, the connector comprises an open-ended tubular body a in which the rubber sleeve b is fitted at one end, a readily rotatable plug c screwing into the other end of the body a, and a fitting d between the sleeve and the screw, the part d having an L-shaped air passage therein and a stem d<1> passing through a slot a<3> in the body a. The stem d<1> is adapted for attachment to the flexible tube of an air-pump. In use, the sleeve b is placed over the nozzle of a tyre valve, and is compressed on it by screwing up the plug c. A pin c<2> projecting from the plug c can be used for lifting the stem of the valve before the pumpconnector is used.
Patent GB-833253-A (GB)
Title: Apparatus for forming a bore in the ground
Inventor: CROFT GEORGE HENRY
IPC: E21B7/26
Filed: 1956-10-23
Abstract: 833,253. Boring earth. HULL, C. O., and HULL, B. A., [trading as HULL, B. A. [Firm of]]. Oct. 23, 1957 [Oct. 23, 1956], No. 32219/56. Class 85 Boring apparatus to be placed in a pit has reversibly-actuable manually-operable means for axially thrusting a rod or headed tube, through the side of the pit, to form a hole, the manually-operable means comprising a stem adapted to hold the rod or tube and forming one member of a reduction gearing. The apparatus comprises a frame 1, 2, 3 having a platform 4 pivoted at 6 and held parallel to the direction of the borehole by clamps 8. A subplatform 10 carries the stem 15 which has a rack 14 engaged by a pinion driven by a pinion driven by a handle 13. After the frame and platform has been aligned the handle is turned to drive a drift 21 mounted on the stem into the side of the pit opposite the hole. A carrier (Fig. 4, not shown) is then attached to the stem at 18, a section of drill rod is inserted in the carrier, and the drive is reversed to thrust the rod into the side of the pit to bore the hole. The rod is disconnected from the carrier, the drive is again reversed, and a further section of drill rod is screwed into the rod in the hole and connected to the carrier so that the hole may be extended. The rods have enlarged socket ends which are engaged by the carrier for withdrawal of rod from the hole. The forward section of rod may carry conical, hemispherical or cupped heads.
Patent GB-1350999-A (GB)
Title: Photographic lenses
IPC: G02B13/00
Filed: 1971-07-08
Abstract: 1350999 Optical objectives POLARIOD CORP 8 July 1971 [8 July 1970] 32224/71 Heading G2J A photographic objective lens system consists of three axially aligned components, and has an overall length from the entrance surface to the exit surface less than one-eighth of its nominal focal length and a Petzval sum not exceeding 0À300, the first component having an AbbÚ value at least 20% greater than the AbbÚ value of the second component, the components being arranged as follows from the long conjugate side:- a convergent first component I having a convex surface towards the long conjugate; a bi-concave divergent second component; and a convergent third component having a convex surface towards the short conjugate. The first component I may be movable for focussing. Surfaces R 3  and/or R 4  may be aspheric, and may be formed by moulding a plastics lens, or by laminating a plastics layer having the aspheric surface on to a glass lens. Components I, II and III are preferably singlets, but may be doublets. The AbbÚ value of a compound lens is defined as the AbbÚ value of a single-element lens having the same dispensive power as the compound lens. Components I and III may be, inter alia, of diamond, and component II may be, inter alia, of LaSF 7 , KI or a mixture of Y and Th oxides. Optical data are given for ten examples.
Patent GB-984877-A (GB)
Title: Improvements in and relating to 6-halonucleosides
IPC: C07H19/16
Filed: 1963-08-15
Abstract: 6-Halonucleosides the sugar residues of which are completely esterified are obtained from the corresponding 6-mercapto compounds by reaction with halogen in solution or suspension in an inert organic solvent, e.g. alcohols, CHCl3, CCl4, aromatic hydrocarbons. Temperatures below 35 DEG  C. are suitable, e.g. + 10 DEG  to - 10 DEG  C.  Numerous acetylated or benzoylated 6 - mercapto - purine and - pyrimidine nucleosides are specified as starting materials including compounds containing further mercapto groups in the 2- and/or 8-positions these being also replaced by halogen in the reaction, amino groups, hydroxy groups and bromine atoms. Examples describe the preparation of 6-chloro-, 2 - amino - 6 - chloro -, and 2 - amino - 8-bromo - 6 - chloro - 9 - (21,31,51 - tribenzoyl)-b -D-ribofuranoxylpurines.  Reference has been directed by the Comptroller to Specification 924,246.
Patent GB-855643-A (GB)
Title: Boxes for the packaging of flowers and the like
IPC: B65D85/50
Filed: 1956-10-23
Abstract: 855,643. Boxes for flowers. RIGID CONTAINERS Ltd., and BURDITT, H. Oct. 17, 1957 7 [Oct. 23, 1956], No. 32267/56. Class 18. A cardboard box 1, Fig. 1, for the packaging of flowers has its side walls doubled over to form inner and outer leaves 3 and 3<SP>1</SP> respectively, the inner leaf 3 of each side wall having a plurality of apertures for detachably receiving the ends of tubes or rods 9 for supporting the flowers. The apertures may be at different heights, one arrangement complete with flowers being shown in Fig. 3. The inner and outer leaves 3, 3<SP>1</SP>, are separated by a longitudinal strip 4 connected to the leaves by fold lines and the inner leaves 3 are not secured to the base of the box. The base of the box has end panels 7 that are folded up and each leaf 3, 3<SP>1</SP>, has an end tab that is bent round and secured to the end panels 7. Ventilation holes 11 pass through the ends of the box. Alternatively, or in addition, incisions may be made in the strip sections 4 such that, when the box is erected, these incisions form upstanding tongues to support the lid 12 in a manner allowing ventilation. The end tabs of the inner leaves 3 may be of a greater height than the end tabs of the outer leaves 31 to support the lid in a similar manner. The lid 12 may be of transparent material or include a transparent window. The box may be made from a single blank.
Patent GB-1430358-A (GB)
Title: Magnetic materials
IPC: C22C1/04
Filed: 1974-07-22
Abstract: 1430358 Magnetic alloy MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 22 July 1974 [20 July 1973] 32393/74 Headings C7A and C7D  Magnetic alloy consists of:- The alloy may be made by powder metallurgy from a pulverized powder of the alloy, the compaction (e.g. by hydraulic or uniaxial pressing) preferably being effected in the presence of a magnetic field. Alternatively the powder may be magnetically ordered prior to compaction. Suitable sintering temperature is 1000‹-1100‹C in vacuum or argon. Uses In electric watches, gramophone pick-ups micromotors or micro-wave tubes.
Patent GB-473739-A (GB)
Title: Preparation of secondary aromatic and heterocyclic amines
IPC: C07D213/74
Filed: 1936-11-26
Abstract: Secondary aromatic or heterocyclic amines are made by passing the vapour of a primary aromatic or heterocyclic amine at a raised temperature over a catalyst having no base-exchanging properties and consisting wholly or mainly of an oxide of aluminium or titanium. The reaction is preferably effected at a temperature above 400 DEG C. at atmospheric pressure.  Specified catalysts are bauxite, alumina gel (obtainable from aluminium amalgam and water), kaolin, and titanium dioxide.  The catalyst may contain small proportions of readily reducible metal oxides, such as copper oxide, and may be mounted on a support such as asbestos or pumice.  Examples are given of the manufacture of (1) diphenylamine from aniline; (2) di-p-tolylamine from p-toluidine; (3) di-b -naphthylamine from b -naphthylamine; and (4) 2 : 2<1>-dipyridylamine from 2-aminopyridine.ALSO:Alumina gel is obtained by treating aluminium amalgam with water.
Patent GB-973455-A (GB)
Title: Improvements in or relating to apparatus for cutting or parting tiles
Inventor: COVILL CECIL JOHN
IPC: B28D1/22
Filed: 1962-08-23
Abstract: 973,455. Cutting tiles. MATHERAN PRODUCTS Ltd. Nov. 25, 1963 [Aug. 23, 1962], No. 32454/62. Heading B5E. Apparatus for cutting tiles comprises a blade 21 having a cutting edge capable of localized deflection in the cutting plane to conform approximately to the contour of the tile and a resilient backing 27 for the blade such that when the latter has engaged and conformed to the contour of the tile, an equalized pressure will be applied to the whole length of the blade. The blade 21 is formed from a number of segments retained in a groove 24 provided in a movable beam 20, the segments being urged together by adjusting screws 35 at the ends of the beam to form a continuous cutting edge while permitting relative sliding movement between the segments; strips of resilient material 27, such as soft rubber, are mounted between the segments and the beam. A lower cutting blade 13 is mounted, in a similar manner as described above, on a stationary frame member 12, the resilient means comprising a tube 25 closed at both ends and filled with liquid; a protective resilient strip 26 is mounted between the tube and the bottom of the cutting blade. In operation, a tile is placed on the lower blade and the upper blade then brought into contact with the tile via a hand wheel 16, gears 17, 18 and screws 19. Continued pressure then adjusts the segments of the blades to any irregularity in the surface of the tile and, by virtue of the resilient members, the same pressure is applied to all parts of the cutting edge. In modifications, the segmental blades may be replaced by full length blades of such a material and section as to cause their cutting edges to be capable of flexure in the cutting plane, and fixed tables may be mounted on opposite sides of the lower cutting blade.
Patent GB-209103-A (GB)
Title: Improvements in or relating to vehicle brakes
IPC: B60T11/04
Filed: 1923-12-28
Abstract: 209,103. Miesse, J. Dec. 28, 1922, [Convention date]. Braking; flexible transmitters.-Brakes of the kind usually provided on the rear road wheels are applied to the steering wheels the cam lever d of the brake being operated by a cable n passing round a pulley l the axis of which may be fixed in any position in a slot in the front axle g. When the pulley is placed coaxially with the steering pivot the brakes are not affecting by steering movements, but by moving the pulley to other positions in the slot the braking effect on the inner wheel on a curve may be made either greats or less than that on the outer wheel. The brake cable is guided by a pulley o mounted on the vehicle frame h, and may be provided with an elastic portion between the pulleys to take up slack.
Patent GB-1390704-A (GB)
Title: Pneumatic conveying apparatus
IPC: B65G53/14
Filed: 1973-07-09
Abstract: 1390704 Centrifugal separators ARBECK INDUSTRIAL & MINING EQUIPMENT CO Ltd 9 July 1973 [21 March 1973] 32512/ 73 Heading B2P [Also in Division B8] In a conveyer apparatus for pneumatic conveying of particulate material by a pneumatic conveying stream within a conduit, a material inlet is connected to a cyclone separator by a first conduit, a second conduit connects the top of the cyclone separator tothe inlet of an energiser, the energiser having at least two centrifugal fan stages with axial flow therebetween, the first stage being surrounded by a shroud, and a third conduit connecting the shroud with the cyclone separator. Fig. 1 shows a closed system, but the apparatus is also suitable for an open system (Fig. 2, not shown). Material enters conduit 5 at inlet 4 and is carried by suction (created by energiser 1) to cyclone separator 6. Most of the material is here separated from conveying air and falls into container 7. Some fine particles are however entrained in the air stream which leaves the separator at 9 and passes via conduit 10 to energiser 1 (Fig. 3) where they are separated by the centrifugal flow caused by impeller 13 and led back under higher pressure through aperture 19 and conduit 11 to the cyclone separator.
Patent GB-1110566-A (GB)
Title: Method of polymerizing gaseous vinyl-type monomers
IPC: C08F10/00
Filed: 1966-07-20
Abstract: Vinyl monomers particularly alpha-olefins are polymerized in a fluidized bed of solid particles of growing polymer, in the absence of liquid media and in the presence of a catalyst consisting of an organo-metallic compound and a transition metal compound absorbed on the solid polymer particles.  The polymer particles are kept in the fluidized state by circulating through them a gaseous stream comprising the monomer and an easily liquefiable gas.  The solid particles of growing polymer may be formed in a separate reactor in the presence of the condensed easily liquefiable gas and the polymer seeds having the catalyst adsorbed thereon conveyed by evaporation of the liquefiable gas to the reactor containing the fluidized bed.  The olefin may be ethylene or propylene. The liquefiable gases may be propane or butanes. The catalyst may be aluminium triisobutyl and TiCl4, or aluminium monochlorodiethyl, and TiCl3.  A flow diagram is given of a continuous process.
Patent GB-439659-A (GB)
Title: Improvements in electric measuring instruments
IPC: G01R1/30
Filed: 1934-11-13
Abstract: 439,659. Resistance, capacitance, and frequency measurements. MIYAZAKI, J., 162, 1-chome, Kashiwagi, Yodobashi-ku, Tokio. Nov. 13, 1934, No. 32666. [Class 37] An instrument for measuring impedances or frequency comprises a bridge having in two of its arms inductances 3, 3<1> in close relation with a movable coil 6 carrying a pointer 7 in the measuring diagonal of the bridge. When the bridge is unbalanced the coil 6 is moved by the magnetic field set up by the inductances, and the mutual inductance between the coil and the inductances 3, 3<1> is varied automatically to rebalance the bridge. In an arrangement for measuring resistance, Fig. 1, the inductances 3, 3<1> form secondary windings of a transformer 1, the primary winding 2 of which is supplied from an alternator 9. The other arms of the bridge comprise the resistance 4 to be measured and a fixed resistance 5. In a modification, for measuring frequency, the other arms of the bridge contain capacitance and inductance respectively. In a further modification, Fig. 3, for measuring capacitance, condensers 10, 12 are associated with the bridge arms through instrument transformers 13, 14. For measuring temperature, two resistances 15, 16, having positive and negative temperature coefficients respectively, are connected in the bridge, and are adapted to be inserted as a unit into the place, whose temperature is to be measured. The transformer 1 may be omitted, the source of current 9 being connected directly across the inductances 3, 3<1>.
Patent GB-331517-A (GB)
Abstract: 331,517. Automatic Telephone Manufacturing Go., Ltd., and Simpson, L. M. March 28, 1929. Drawings to Specification. Totalizators.-In an electric totalizator, discrimination between a win and a place bet registration is effected by a control lead operating a change-over relay at the central equipment. The description is repeated from that contained in Specification 331,500. Specification 331,619 also is referred to.
Patent GB-897427-A (GB)
Title: Improvements in or relating to domestic wash boilers
Inventor: MORLEY HUBERT
IPC: D06F1/06
Filed: 1958-10-17
Abstract: 897,427. Making washing-boilers. MORLEY PRODUCTS (PADIHAM) Ltd. Oct. 19, 1959 [Oct. 17, 1958], No. 33164/58. Class 83 (2). [Also in Group XIII] A length of sheet steel is bent to form the case 10 of a washing- boiler, one end of the sheet being bent to form a portion 14, Fig. 3, overlapping the other end to facilitate spot-welding and being bent to form an inward rib 16. A sheet steel heat baffle 22, Fig. 7, spaced between the case 10 and the water tank 18, Fig. 2, for use if the boiler is gas-heated, is corrugated at its lower edge at four diametrically-opposed places 40, for tapering and strengthening and has a flange or flanges 24 secured by split-pin or rivet to the case-rib 16. Various forms of the rib 16 and the flanges 24 and methods of joining them are described, Figs. 4-6 (not shown); e.g. the flanges 24 of the heat baffle 22 may be spot-welded or riveted together at their top and bottom, Fig. 7, but spaced apart between the ends to form a slot S to receive a tongue 28, Figs. 2, 3, on the rib 16 of the case 10. To hold the baffle 22 in position a sheet of metal 42, Fig. 2, is riveted to the baffle at the front of the boiler, i.e. diametrically opposite the rib 16 at the rear. The sheet 42 is shaped to form a condensate tray 46 at the bottom and has two holes 43 to fit over portions of an outlet tap 20 which carries an abutment 44 for locating the baffle. The Provisional Specification describes also the baffle-flanges secured to the case-rib by a screw.
Patent GB-372246-A (GB)
Title: Improvements in or relating to self-contained breathing appliances
IPC: A62B9/04
Filed: 1931-11-30
Abstract: 372,246. Respiratory appliances. DAVIS, R. H. and DAVIS, R. W. G., 187, Westminster Bridge Road, London. Nov. 30, 1931, No. 33200. [Class 81 (ii).] In self-contained d breathing appliances of the kind wherein the parts, such as the absorbent canister 2, the breathing bag 1, and the oxygen cylinder 7 are carried on the wearer's back and covered at the back and also on the sides by a solid guard or a frame 11, the parts are all mounted on the guard and are spaced from the small of the back to avoid inconvenience in stooping. As shown, the oxygen cylinder 7 is held by a metal strap 14, secured to a lug on the guard by a bolt and fly-nut ; the canister 2 is attached to an upper flange 12 on the guard by the exhaling pipe 4 which passes through the flange and is secured thereto by nuts 15 ; and the breathing-bag is supported by brackets 16 on the guard and by rigid pipes 5, 6 connecting the bag with the canister and the inhalation pipe respectively, the pipe 6 being secured to the flange 12 in the same manner as the pipe 4. The guard is supported at the back by straps 13, secured to the flange 12 and to the lower corners of the guard, and passing over the shoulders and under the arms.